IP Library › Granted Patent US 6,639,674
Granted Patent Utility Small
US 6,639,674 · Confirmation No. 3573

METHODS AND APPARATUS FOR POLARIZED REFLECTANCE SPECTROSCOPY

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2015-04-21 COCOUT Certificate of Correction - Post Issue Communication 1 View
2015-03-13 COCIN Request for Certificate of Correction 2 View
2015-03-13 WFEE Fee Worksheet (SB06) 2 View
2015-03-13 N417 Electronic Filing System Acknowledgment Receipt 2 View
2013-10-28 COCX Supervisory Patent Examiner Response - Return for Certificate of Correction 1 View
2003-08-11 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-11 LET. Miscellaneous Incoming Letter 1 View
2002-03-29 TRNA Transmittal of New Application 5 View
2002-03-29 DRW Drawings-only black and white line drawings 12 View
2001-03-28 TRNA Transmittal of New Application 1 View
2001-03-28 SPEC Specification 54 View
2001-03-28 CLM Claims 5 View
2001-03-28 ABST Abstract 1 View
2001-03-28 DRW Drawings-only black and white line drawings 12 View
2001-03-28 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,639,674
App. No.
09/821,836
Filed
2001-03-28
Granted
2003-10-28
Pub. No.
US20020135752A1
Art Unit
2877
PTA
-228 days